Because in winter 1 habitat might get too cold so the bird might have to move to a warmer habitat in winter
Birds have a hard time in cold weather, because their body temperatures are higher than those of humans They provide warmth and insulation against colder temperatures. Many birds grow extra feathers in the months leading up to colder weather, so that they'll stay warmer when temperatures drop.
Answer:
This is so simple. Read your lesson. If you cheat like this you'll never get through the rest of the course.
Explanation:
Desert plantsare characterized by :
- Long roots , that could reach deep within the ground for water sources
- Thin leaves that make them able to sustain more water against the hot weather
hope this helps
Answer: unfavourable ph condition for the pepsin
Explanation: during digestion, enzymes are needed to aid the process.digestive enzymes are biological catalyst that breakdown large food particles into digestible form .
As biological catalyst, enzymes require an optimum temperature and pH condition.outside this temperature or pH,the enzyme is denatured.
In the stomach, hydrochloric acid is required to convert pepsinogen into it's active form,pepsin.the acid also creates an optimum low pH that pepsin needs to function.
As the food moves to the small intestine,the pH is alkaline and is unfavourable for pepsin to function.
